you are forgetting the obvious-the last 20 years the fica taxes have kept on rising on young workers, but for the first 50 years the fica taxes were a pittance. also when the elderly realized they were getting a great windfall they created lobbying groups like AARP and became bloc voters to maintain the status quo (or increase it with generous colas etc.)
as to your math-duh-why do you think we call it a PONZI scheme?
"also when the elderly realized they were getting a great windfall they created lobbying groups like AARP and became bloc voters to maintain the status quo (or increase it with generous colas etc.)'
It's not a 'great windfall'. Go back and read my post and explain to me why I'm getting a 'great windfall'.